#include <iostream>
using namespace std;
class Cat
{
public:
	Cat(int age);
	itsAge(age)
	{
		HowManyCats++;
	}
	virtual ~Cat()
	{
		HowManyCats--;
	}
	virtual int GetAge()
	{
		return itsAge;
	}
	virtual void SetAge()
	{
		itsAge = age;
	}
	static int GetHowMany()
	{
		return HowManyCats;
	}
private:
	int itsAge;
	static int HowManyCats;
};
int Cat::HowManyCats = 0;
void 